101
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Liu Y, Yang Y, Suo Y, Li C, Chen M, Zheng S, Li H, Tang C, Fan N, Lan T, Zhou J, Li Y, Wang J, Chen H, Zou Q, Lai L. Inducible caspase-9 suicide gene under control of endogenous oct4 to safeguard mouse and human pluripotent stem cell therapy. Mol Ther Methods Clin Dev 2022; 24:332-341. [PMID: 35229007 PMCID: PMC8851157 DOI: 10.1016/j.omtm.2022.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/26/2022] [Indexed: 12/22/2022]
Abstract
Pluripotent stem cells (PSCs) are promising in regenerative medicine. A major challenge of PSC therapy is the risk of teratoma formation because of the contamination of undifferentiated stem cells. Constitutive promoters or endogenous SOX2 promoters have been used to drive inducible caspase-9 (iCasp9) gene expression but cannot specifically eradicate undifferentiated PSCs. Here, we inserted iCasp9 gene into the endogenous OCT4 locus of human and mouse PSCs without affecting their pluripotency. A chemical inducer of dimerization (CID), AP1903, induced iCasp9 activation, which led to the apoptosis of specific undifferentiated PSCs in vitro and in vivo. Differentiated cell lineages survived because of the silence of the endogenous OCT4 gene. Human and mouse PSCs were controllable when CID was administrated within 2 weeks after PSC injection in immunodeficient mice. However, an interval longer than 2 weeks caused teratoma formation and mouse death because a mass of somatic cells already differentiated from the PSCs. In conclusion, we have developed a specific and efficient PSC suicide system that will be of value in the clinical applications of PSC-based therapy.
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Affiliation(s)
- Yang Liu
- School of Life Sciences, University of Science and Technology of China, Hefei 230026, China.,Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.,CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yang Yang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yangyang Suo
- Joint School of Life Science, Guangzhou Institutes of Biomedicine and Health, Chinese Academic and Sciences, Guangzhou Medical University, Guangzhou 511495, China
| | - Chuan Li
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Min Chen
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Shuwen Zheng
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Hao Li
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Chengcheng Tang
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Nana Fan
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ting Lan
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jizeng Zhou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Yingying Li
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jiaowei Wang
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Huangyao Chen
- CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Qingjian Zou
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Liangxue Lai
- School of Life Sciences, University of Science and Technology of China, Hefei 230026, China.,Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.,CAS Key Laboratory of Regenerative Biology, Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Joint Research Laboratory on Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.,Research Unit of Generation of Large Animal Disease Models, Chinese Academy of Medical Sciences (2019RU015), Guangzhou 510530, China
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102
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Wu Y, Huang Z, Harrison R, Liu L, Zhu L, Situ Y, Wang Y. Engineering CAR T cells for enhanced efficacy and safety. APL Bioeng 2022; 6:011502. [PMID: 35071966 PMCID: PMC8769768 DOI: 10.1063/5.0073746] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 12/22/2021] [Indexed: 01/18/2023] Open
Abstract
Despite its success in treating hematologic malignancies, chimeric antigen receptor (CAR) T cell therapy faces two major challenges which hinder its broader applications: the limited effectiveness against solid tumors and the nonspecific toxicities. To address these concerns, researchers have used synthetic biology approaches to develop optimization strategies. In this review, we discuss recent improvements on the CAR and other non-CAR molecules aimed to enhance CAR T cell efficacy and safety. We also highlight the development of different types of inducible CAR T cells that can be controlled by environmental cues and/or external stimuli. These advancements are bringing CAR T therapy one step closer to safer and wider applications, especially for solid tumors.
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Affiliation(s)
- Yiqian Wu
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Ziliang Huang
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Reed Harrison
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Longwei Liu
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Linshan Zhu
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Yinglin Situ
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Yingxiao Wang
- Authors to whom correspondence should be addressed: and
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103
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Combinatorial antigen targeting strategies for acute leukemia: application in myeloid malignancy. Cytotherapy 2022; 24:282-290. [PMID: 34955406 PMCID: PMC8950815 DOI: 10.1016/j.jcyt.2021.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND AIMS Efforts to safely and effectively treat acute myeloid leukemia (AML) by targeting a single leukemia-associated antigen with chimeric antigen receptor (CAR) T cells have met with limited success, due in part to heterogeneous expression of myeloid antigens. The authors hypothesized that T cells expressing CARs directed toward two different AML-associated antigens would eradicate tumors and prevent relapse. METHODS For co-transduction with the authors' previously optimized CLL-1 CAR currently in clinical study (NCT04219163), the authors generated two CARs targeting either CD123 or CD33. The authors then tested the anti-tumor activity of T cells expressing each of the three CARs either alone or after co-transduction. The authors analyzed CAR T-cell phenotype, expansion and transduction efficacy and assessed function by in vitro and in vivo activity against AML cell lines expressing high (MOLM-13: CD123 high, CD33 high, CLL-1 intermediate), intermediate (HL-60: CD123 low, CD33 intermediate, CLL-1 intermediate/high) or low (KG-1a: CD123 low, CD33 low, CLL-1 low) levels of the target antigens. RESULTS The in vitro benefit of dual expression was most evident when the target cell line expressed low antigen levels (KG-1a). Mechanistically, dual expression was associated with higher pCD3z levels in T cells compared with single CAR T cells on exposure to KG-1a (P < 0.0001). In vivo, combinatorial targeting with CD123 or CD33 and CLL-1 CAR T cells improved tumor control and animal survival for all lines (KG-1a, MOLM-13 and HL-60); no antigen escape was detected in residual tumors. CONCLUSIONS Overall, these findings demonstrate that combinatorial targeting of CD33 or CD123 and CLL-1 with CAR T cells can control growth of heterogeneous AML tumors.
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104
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Immunotherapy in Advanced Prostate Cancer-Light at the End of the Tunnel? Int J Mol Sci 2022; 23:ijms23052569. [PMID: 35269712 PMCID: PMC8910587 DOI: 10.3390/ijms23052569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 12/16/2022] Open
Abstract
Immunotherapeutic treatment approaches are now an integral part of the treatment of many solid tumors. However, attempts to integrate immunotherapy into the treatment of prostate cancer have been disappointing so far. This is due to a highly immunosuppressive, “cold” tumor microenvironment, which is characterized, for example, by the absence of cytotoxic T cells, an increased number of myeloid-derived suppressor cells or regulatory T cells, a decreased number of tumor antigens, or a defect in antigen presentation. The consequence is a reduced efficacy of many established immunotherapeutic treatments such as checkpoint inhibitors. However, a growing understanding of the underlying mechanisms of tumor–immune system interactions raises hopes that immunotherapeutic strategies can be optimized in the future. The aim of this review is to provide an overview of the current status and future directions of immunotherapy development in prostate cancer. Background information on immune response and tumor microenvironment will help to better understand current therapeutic strategies under preclinical and clinical development.
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105
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Evaluation of the stability and intratumoral delivery of foreign transgenes encoded by an oncolytic Foamy Virus vector. Cancer Gene Ther 2022; 29:1240-1251. [PMID: 35145270 PMCID: PMC9363555 DOI: 10.1038/s41417-022-00431-y] [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: 07/16/2021] [Revised: 12/21/2021] [Accepted: 01/25/2022] [Indexed: 11/12/2022]
Abstract
Foamy Viruses are cell cycle-dependent retroviruses capable of persisting unintegrated in quiescent cells until cell division occurs. This unique ability allows them to target slowly dividing human tumor cells which remains an unmet need in oncolytic virotherapy. We have previously reported the generation of oncolytic Foamy Virus (oFV) vector system and demonstrated its superiority over oncolytic Murine Leukemia Virus vectors in infecting slowly dividing cancer cells. In the present study we evaluated (i) the ability of oFV to carry foreign transgenes and (ii) the genetic stability of these vectors upon serial passage. The thymidine kinase (TK) and inducible caspase 9 (iCasp9) cDNAs could be detected in the oFV backbone for up to 3 in vitro passages. In vivo, GFP-, TK- and iCasp9- carrying oFV vectors propagated efficiently in subcutaneous xenograft glioblastoma tumors and drove transgene expression for up to 66 days. However, in vivo oFV vector spread eventually resulted in complete loss of the iCasp9 cDNA, minor loss of the TK cDNA and negligible loss of the GFP. Our results suggest that oFV is a promising gene delivery platform and that transgenes smaller than 1 kb might be most suitable for oFV arming.
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106
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Harada S, Ando M, Ando J, Ishii M, Yamaguchi T, Yamazaki S, Toyota T, Ohara K, Ohtaka M, Nakanishi M, Shin C, Ota Y, Nakashima K, Ohshima K, Imai C, Nakazawa Y, Nakauchi H, Komatsu N. Dual-antigen targeted iPSC-derived chimeric antigen receptor-T cell therapy for refractory lymphoma. Mol Ther 2022; 30:534-549. [PMID: 34628050 PMCID: PMC8821952 DOI: 10.1016/j.ymthe.2021.10.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 07/04/2021] [Accepted: 09/30/2021] [Indexed: 02/04/2023] Open
Abstract
We generated dual-antigen receptor (DR) T cells from induced pluripotent stem cells (iPSCs) to mitigate tumor antigen escape. These cells were engineered to express a chimeric antigen receptor (CAR) for the antigen cell surface latent membrane protein 1 (LMP1; LMP1-CAR) and a T cell receptor directed to cell surface latent membrane protein 2 (LMP2), in association with human leucocyte antigen A24, to treat therapy-refractory Epstein-Barr virus-associated lymphomas. We introduced LMP1-CAR into iPSCs derived from LMP2-specific cytotoxic T lymphocytes (CTLs) to generate rejuvenated CTLs (rejTs) active against LMP1 and LMP2, or DRrejTs. All DRrejT-treated mice survived >100 days. Furthermore, DRrejTs rejected follow-up inocula of lymphoma cells, demonstrating that DRrejTs persisted long-term. We also demonstrated that DRrejTs targeting CD19 and LMP2 antigens exhibited a robust tumor suppressive effect and conferred a clear survival advantage. Co-operative antitumor effect and in vivo persistence, with unlimited availability of DRrejT therapy, will provide powerful and sustainable T cell immunotherapy.
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Affiliation(s)
- Sakiko Harada
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Miki Ando
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan; Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.
| | - Jun Ando
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Midori Ishii
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Tomoyuki Yamaguchi
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Satoshi Yamazaki
- Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Laboratory of Stem Cell Therapy Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Tokuko Toyota
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Kazuo Ohara
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Manami Ohtaka
- TOKIWA-Bio, Inc., Tsukuba Center, Ibaraki 305-0047, Japan
| | | | - Chansu Shin
- Department of Pediatrics, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yasunori Ota
- Department of Pathology, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Kazutaka Nakashima
- Department of Pathology, School of Medicine, Kurume University, Fukuoka 830-0011, Japan
| | - Koichi Ohshima
- Department of Pathology, School of Medicine, Kurume University, Fukuoka 830-0011, Japan
| | - Chihaya Imai
- Department of Pediatrics, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yozo Nakazawa
- Department of Pediatrics, Shinsyu University School of Medicine, Nagano 390-0802, Japan
| | - Hiromitsu Nakauchi
- Division of Stem Cell Therapy, Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305-5461, USA.
| | - Norio Komatsu
- Department of Hematology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
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107
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Mesenchymal Stem Cell-Based COVID-19 Therapy: Bioengineering Perspectives. Cells 2022; 11:cells11030465. [PMID: 35159275 PMCID: PMC8834073 DOI: 10.3390/cells11030465] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/18/2021] [Accepted: 12/22/2021] [Indexed: 02/06/2023] Open
Abstract
The novel pathogenic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). Mesenchymal stem cells (MSCs) are currently utilized in clinics for pulmonary inflammatory diseases, including acute respiratory distress syndrome and acute lung injury. Given that MSCs offer a promising treatment against COVID-19, they are being used against COVID-19 in more than 70 clinical trials with promising findings. Genetically engineered MSCs offer promising therapeutic options in pulmonary diseases. However, their potential has not been explored yet. In this review, we provide perspectives on the functionally modified MSCs that can be developed and harnessed for COVID-19 therapy. Options to manage the SARS-CoV-2 infection and its variants using various bioengineering tools to increase the therapeutic efficacy of MSCs are highlighted.
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108
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Challenges and Advances in Chimeric Antigen Receptor Therapy for Acute Myeloid Leukemia. Cancers (Basel) 2022; 14:cancers14030497. [PMID: 35158765 PMCID: PMC8833567 DOI: 10.3390/cancers14030497] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
The advent of chimeric antigen receptor (CAR) T-cell therapy has led to dramatic remission rates in multiple relapsed/refractory hematologic malignancies. While CAR T-cell therapy has been particularly successful as a treatment for B-cell malignancies, effectively treating acute myeloid leukemia (AML) with CARs has posed a larger challenge. AML not only creates an immunosuppressive tumor microenvironment that dampens CAR T-cell responses, but it also lacks many unique tumor-associated antigens, making leukemic-specific targeting difficult. One advantage of CAR T-cell therapy compared to alternative treatment options is the ability to provide prolonged antigen-specific immune effector and surveillance functions. Since many AML CAR targets under investigation including CD33, CD117, and CD123 are also expressed on hematopoietic stem cells, CAR T-cell therapy can lead to severe and potentially lethal myeloablation. Novel strategies to combat these issues include creation of bispecific CARs, CAR T-cell "safety switches", TCR-like CARs, NK CARs, and universal CARs, but all vary in their ability to provide a sustained remission, and consolidation with an allogeneic hematopoietic cell transplantation (allo-HCT) will be necessary in most cases This review highlights the delicate balance between effectively eliminating AML blasts and leukemic stem cells, while preserving the ability for bone marrow to regenerate. The impact of CAR therapy on treatment landscape of AML and changing scope of allo-HCT is discussed. Continued advances in AML CAR therapy would be of great benefit to a disease that still has high morbidity and mortality.
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109
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Advances in Allogeneic Cancer Cell Therapy and Future Perspectives on “Off-the-Shelf” T Cell Therapy Using iPSC Technology and Gene Editing. Cells 2022; 11:cells11020269. [PMID: 35053386 PMCID: PMC8773622 DOI: 10.3390/cells11020269] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 12/03/2022] Open
Abstract
The concept of allogeneic cell therapy was first presented over 60 years ago with hematopoietic stem cell transplantation. However, complications such as graft versus host disease (GVHD) and regimen-related toxicities remained as major obstacles. To maximize the effect of graft versus leukemia, while minimizing the effect of GVHD, donor lymphocyte infusion was utilized. This idea, which was used against viral infections, postulated that adoptive transfer of virus-specific cytotoxic T lymphocytes could reconstitute specific immunity and eliminate virus infected cells and led to the idea of banking third party cytotoxic T cells (CTLs). T cell exhaustion sometimes became a problem and difficulty arose in creating robust CTLs. However, the introduction of induced pluripotent stem cells (iPSCs) lessens such problems, and by using iPSC technology, unlimited numbers of allogeneic rejuvenated CTLs with robust and proliferative cytotoxic activity can be created. Despite this revolutionary concept, several concerns still exist, such as immunorejection by recipient cells and safety issues of gene editing. In this review, we describe approaches to a feasible “off-the-shelf” therapy that can be distributed rapidly worldwide. We also offer perspectives on the future of allogeneic cell cancer immunotherapy.
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110
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Haddad F, Daver N. An Update on Immune Based Therapies in Acute Myeloid Leukemia: 2021 and Beyond! ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1342:273-295. [PMID: 34972969 DOI: 10.1007/978-3-030-79308-1_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Despite advances in the treatment of acute myeloid leukemia (AML), relapse is still widely observed and represents the major cause of death among patients with AML. Treatment options in the relapse setting are limited, still relying predominantly on allogeneic hematopoietic stem cell transplantation (allo-HSCT) and cytotoxic chemotherapy, with poor outcomes. Novel targeted and venetoclax-based combinations are being investigated and have shown encouraging results. Immune checkpoint inhibitors in combination with low-intensity chemotherapy demonstrated encouraging response rates and survival among patients with relapsed and/or refractory (R/R) AML, especially in the pre- and post-allo-HSCT setting. Blocking the CD47/SIRPα pathway is another strategy that showed robust anti-leukemic activity, with a response rate of around 70% and an encouraging median overall survival in patients with newly diagnosed, higher-risk myelodysplastic syndrome and patients with AML with a TP53 mutation. One approach that was proven to be very effective in the relapsed setting of lymphoid malignancies is chimeric antigen receptor (CAR) T cells. It relies on the infusion of genetically engineered T cells capable of recognizing specific epitopes on the surface of leukemia cells. In AML, different CAR constructs with different target antigens have been evaluated and demonstrated safety and feasibility in the R/R setting. However, the difficulty of potently targeting leukemic blasts in AML while sparing normal cells represents a major limitation to their use, and strategies are being tested to overcome this obstacle. A different approach is based on endogenously redirecting the patient's system cells to target and destroy leukemic cells via bispecific T-cell engagers (BiTEs) or dual antigen receptor targeting (DARTs). Early results have demonstrated the safety and feasibility of these agents, and research is ongoing to develop BiTEs with longer half-life, allowing for less frequent administration schedules and developing them in earlier and lower disease burden settings.
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Affiliation(s)
- Fadi Haddad
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Naval Daver
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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111
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Insights into Modern Therapeutic Approaches in Pediatric Acute Leukemias. Cells 2022; 11:cells11010139. [PMID: 35011701 PMCID: PMC8749975 DOI: 10.3390/cells11010139] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/07/2021] [Accepted: 12/15/2021] [Indexed: 02/01/2023] Open
Abstract
Pediatric cancers predominantly constitute lymphomas and leukemias. Recently, our knowledge and awareness about genetic diversities, and their consequences in these diseases, have greatly expanded. Modern solutions are focused on mobilizing and impacting a patient’s immune system. Strategies to stimulate the immune system, to prime an antitumor response, are of intense interest. Amid those types of therapies are chimeric antigen receptor T (CAR-T) cells, bispecific antibodies, and antibody–drug conjugates (ADC), which have already been approved in the treatment of acute lymphoblastic leukemia (ALL)/acute myeloid leukemia (AML). In addition, immune checkpoint inhibitors (ICIs), the pattern recognition receptors (PRRs), i.e., NOD-like receptors (NLRs), Toll-like receptors (TLRs), and several kinds of therapy antibodies are well on their way to showing significant benefits for patients with these diseases. This review summarizes the current knowledge of modern methods used in selected pediatric malignancies and presents therapies that may hold promise for the future.
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112
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Abrantes R, Duarte HO, Gomes C, Wälchli S, Reis CA. CAR-Ts: new perspectives in cancer therapy. FEBS Lett 2022; 596:403-416. [PMID: 34978080 DOI: 10.1002/1873-3468.14270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/02/2021] [Accepted: 12/20/2021] [Indexed: 12/31/2022]
Abstract
Chimeric antigen receptor (CAR)-T-cell therapy is a promising anticancer treatment that exploits the host's immune system to fight cancer. CAR-T cell therapy relies on immune cells being modified to express an artificial receptor targeting cancer-specific markers, and infused into the patients where they will recognize and eliminate the tumour. Although CAR-T cell therapy has produced encouraging outcomes in patients with haematologic malignancies, solid tumours remain challenging to treat, mainly due to the lack of cancer-specific molecular targets and the hostile, often immunosuppressive, tumour microenvironment. CAR-T cell therapy also depends on the quality of the injected product, which is closely connected to CAR design. Here, we explain the technology of CAR-Ts, focusing on the composition of CARs, their application, and limitations in cancer therapy, as well as on the current strategies to overcome the challenges encountered. We also address potential future targets to overcome the flaws of CAR-T cell technology in the treatment of cancer, emphasizing glycan antigens, the aberrant forms of which attain high tumour-specific expression, as promising targets for CAR-T cell therapy.
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Affiliation(s)
- Rafaela Abrantes
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
- ICBAS, Abel Salazar Biomedical Sciences Institute, University of Porto, Portugal
| | - Henrique O Duarte
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
| | - Catarina Gomes
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
| | - Sébastien Wälchli
- Translational Research Unit, Department of Cellular Therapy, Oslo University Hospital, Norway
| | - Celso A Reis
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IPATIMUP, Institute of Molecular Pathology and Immunology, University of Porto, Portugal
- ICBAS, Abel Salazar Biomedical Sciences Institute, University of Porto, Portugal
- FMUP, Faculty of Medicine, University of Porto, Portugal
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113
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Checkpoint Inhibitors and Other Immune-Based Therapies in Acute Myeloid Leukemia. Cancer J 2022; 28:43-50. [DOI: 10.1097/ppo.0000000000000573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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114
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Romecín PA, Vinyoles M, López-Millán B, de la Guardia RD, Atucha NM, Querol S, Bueno C, Benitez R, Gonzalez-Rey E, Delgado M, Menéndez P. OUP accepted manuscript. Stem Cells Transl Med 2022; 11:88-96. [PMID: 35641173 PMCID: PMC8895490 DOI: 10.1093/stcltm/szab007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/13/2021] [Indexed: 11/30/2022] Open
Abstract
Mesenchymal stromal stem/cells (MSC) therapies are clinically used in a wide range of disorders based on their robust HLA-independent immunosuppressive and anti-inflammatory properties. However, the mechanisms underlying MSC therapeutic activity remain elusive as demonstrated by the unpredictable therapeutic efficacy of MSC infusions reported in multiple clinical trials. A seminal recent study showed that infused MSCs are actively induced to undergo apoptosis by recipient cytotoxic T cells, a mechanism that triggers in vivo recipient-induced immunomodulation by such apoptotic MSCs, and the need for such recipient cytotoxic cell activity could be replaced by the administration of ex vivo-generated apoptotic MSCs. Moreover, the use of MSC-derived extracellular vesicles (MSC-EVs) is being actively explored as a cell-free therapeutic alternative over the parental MSCs. We hypothesized that the introduction of a “suicide gene” switch into MSCs may offer on-demand in vivo apoptosis of transplanted MSCs. Here, we prompted to investigate the utility of the iCasp9/AP1903 suicide gene system in inducing apoptosis of MSCs. iCasp9/AP1903-induced apoptotic MSCs (MSCiCasp9+) were tested in vitro and in in vivo models of acute colitis. Our data show a very similar and robust immunosuppressive and anti-inflammatory properties of both “parental” alive MSCGFP+ cells and apoptotic MSCiCasp9+ cells in vitro and in vivo regardless of whether apoptosis was induced in vivo or in vitro before administering MSCiCasp9+ lysates. This development of an efficient iCasp9 switch may potentiate the safety of MSC-based therapies in the case of an adverse event and, will also circumvent current logistic technical limitations and biological uncertainties associated to MSC-EVs.
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Affiliation(s)
- Paola Alejandra Romecín
- Josep Carreras Leukemia Research Institute, Barcelona, Spain
- RICORS-TERAV, ISCIII, Madrid, Spain
- Paola Alejandra Romecin, Josep Carreras Leukemia Research Institute, School of Medicine, University of Barcelona, Carrer Casanova 143, 4º floor, 08036, Barcelona, Spain. Tel: (+34) 93 5572810;
| | | | - Belén López-Millán
- Josep Carreras Leukemia Research Institute, Barcelona, Spain
- RICORS-TERAV, ISCIII, Madrid, Spain
- GENYO, Centro Pfizer-Universidad de Granada-Junta de Andalucía de Genómica e Investigación Oncológica, Granada, Spain
| | - Rafael Diaz de la Guardia
- GENYO, Centro Pfizer-Universidad de Granada-Junta de Andalucía de Genómica e Investigación Oncológica, Granada, Spain
| | - Noemi M Atucha
- Departamento de Fisiologia Humana, Facultad de Medicina, Murcia, Spain
| | - Sergi Querol
- RICORS-TERAV, ISCIII, Madrid, Spain
- Banc de Sang i Teixits, Barcelona, Spain
| | - Clara Bueno
- Josep Carreras Leukemia Research Institute, Barcelona, Spain
- RICORS-TERAV, ISCIII, Madrid, Spain
- CIBERONC, ISCIII, Barcelona, Spain
| | - Raquel Benitez
- Instituto de Parasitologia y Biomedicina López-Neyra (IPBLN-CSIC), Armilla, Granada, Spain
| | - Elena Gonzalez-Rey
- Instituto de Parasitologia y Biomedicina López-Neyra (IPBLN-CSIC), Armilla, Granada, Spain
| | - Mario Delgado
- Instituto de Parasitologia y Biomedicina López-Neyra (IPBLN-CSIC), Armilla, Granada, Spain
| | - Pablo Menéndez
- Josep Carreras Leukemia Research Institute, Barcelona, Spain
- RICORS-TERAV, ISCIII, Madrid, Spain
- CIBERONC, ISCIII, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
- Corresponding author: Pablo Menéndez, Josep Carreras Leukemia Research Institute, School of Medicine, University of Barcelona, Carrer Casanova 143, 4º floor, 08036, Barcelona, Spain. Tel: (+34) 93 5572810;
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Palamarchuk AI, Alekseeva NA, Streltsova MA, Ustiuzhanina MO, Kobyzeva PA, Kust SA, Grechikhina MV, Boyko AA, Shustova OA, Sapozhnikov AM, Kovalenko EI. Increased Susceptibility of the CD57 - NK Cells Expressing KIR2DL2/3 and NKG2C to iCasp9 Gene Retroviral Transduction and the Relationships with Proliferative Potential, Activation Degree, and Death Induction Response. Int J Mol Sci 2021; 22:ijms222413326. [PMID: 34948123 PMCID: PMC8709225 DOI: 10.3390/ijms222413326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/28/2022] Open
Abstract
Nowadays, the use of genetically modified NK cells is a promising strategy for cancer immunotherapy. The additional insertion of genes capable of inducing cell suicide allows for the timely elimination of the modified NK cells. Different subsets of the heterogenic NK cell population may differ in proliferative potential, in susceptibility to genetic viral transduction, and to the subsequent induction of cell death. The CD57−NKG2C+ NK cells are of special interest as potential candidates for therapeutic usage due to their high proliferative potential and certain features of adaptive NK cells. In this study, CD57− NK cell subsets differing in KIR2DL2/3 and NKG2C expression were transduced with the iCasp9 suicide gene. The highest transduction efficacy was observed in the KIR2DL2/3+NKG2C+ NK cell subset, which demonstrated an increased proliferative potential with prolonged cultivation. The increased transduction efficiency of the cell cultures was associated with the higher expression level of the HLA-DR activation marker. Among the iCasp9-transduced subsets, KIR2DL2/3+ cells had the weakest response to the apoptosis induction by the chemical inductor of dimerization (CID). Thus, KIR2DL2/3+NKG2C+ NK cells showed an increased susceptibility to the iCasp9 retroviral transduction, which was associated with higher proliferative potential and activation status. However, the complete elimination of these cells with CID is impeded.
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Affiliation(s)
- Anastasia I. Palamarchuk
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Nadezhda A. Alekseeva
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Maria A. Streltsova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Maria O. Ustiuzhanina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia
| | - Polina A. Kobyzeva
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Sofya A. Kust
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Maria V. Grechikhina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Anna A. Boyko
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Olga A. Shustova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Alexander M. Sapozhnikov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
| | - Elena I. Kovalenko
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, st. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia; (A.I.P.); (N.A.A.); (M.A.S.); (M.O.U.); (P.A.K.); (S.A.K.); (M.V.G.); (A.A.B.); (O.A.S.); (A.M.S.)
- Correspondence: ; Tel.: +7-495-330-40-11
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Current Limitations and Perspectives of Chimeric Antigen Receptor-T-Cells in Acute Myeloid Leukemia. Cancers (Basel) 2021; 13:cancers13246157. [PMID: 34944782 PMCID: PMC8699597 DOI: 10.3390/cancers13246157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Acute myeloid leukemia (AML) is the most frequent type of acute leukemia in adults. Allogeneic hematopoietic cell transplantation (allo-HCT) has been the only potentially curative treatment for the majority of patients. The ability of chimeric antigen receptor (CAR)-modified T-cell therapy directed against the CD19 antigen to induce durable remissions in patients with acute lymphoblastic leukemia (ALL) has provided optimism that this novel treatment paradigm can be extrapolated to AML. In this review, we provide an overview of candidate target antigens for CAR-T-cells in AML, an update on recent progress in preclinical and clinical development of investigational CAR-T-cell products, and discuss challenges for the clinical implementation of CAR-T-cell therapy in AML. Abstract Adoptive transfer of gene-engineered chimeric antigen receptor (CAR)-T-cells has emerged as a powerful immunotherapy for combating hematologic cancers. Several target antigens that are prevalently expressed on AML cells have undergone evaluation in preclinical CAR-T-cell testing. Attributes of an ‘ideal’ target antigen for CAR-T-cell therapy in AML include high-level expression on leukemic blasts and leukemic stem cells (LSCs), and absence on healthy tissues, normal hematopoietic stem and progenitor cells (HSPCs). In contrast to other blood cancer types, where CAR-T therapies are being similarly studied, only a rather small number of AML patients has received CAR-T-cell treatment in clinical trials, resulting in limited clinical experience for this therapeutic approach in AML. For curative AML treatment, abrogation of bulk blasts and LSCs is mandatory with the need for hematopoietic recovery after CAR-T administration. Herein, we provide a critical review of the current pipeline of candidate target antigens and corresponding CAR-T-cell products in AML, assess challenges for clinical translation and implementation in routine clinical practice, as well as perspectives for overcoming them.
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117
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Xiao X, Huang S, Chen S, Wang Y, Sun Q, Xu X, Li Y. Mechanisms of cytokine release syndrome and neurotoxicity of CAR T-cell therapy and associated prevention and management strategies. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:367. [PMID: 34794490 PMCID: PMC8600921 DOI: 10.1186/s13046-021-02148-6] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/20/2021] [Indexed: 02/08/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy has yielded impressive outcomes and transformed treatment algorithms for hematological malignancies. To date, five CAR T-cell products have been approved by the US Food and Drug Administration (FDA). Nevertheless, some significant toxicities pose great challenges to the development of CAR T-cell therapy, most notably cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS). Understanding the mechanisms underlying these toxicities and establishing prevention and treatment strategies are important. In this review, we summarize the mechanisms underlying CRS and ICANS and provide potential treatment and prevention strategies.
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Affiliation(s)
- Xinyi Xiao
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Shengkang Huang
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Sifei Chen
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China
| | - Yazhuo Wang
- The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China.,Medical College of Rehabilitation, Southern Medical University, Guangzhou, Guangdong, 510515, People's Republic of China
| | - Qihang Sun
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, 510623, People's Republic of China
| | - Xinjie Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China.
| | - Yuhua Li
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, People's Republic of China. .,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, 510005, People's Republic of China.
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118
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Li YR, Zhou Y, Kim YJ, Zhu Y, Ma F, Yu J, Wang YC, Chen X, Li Z, Zeng S, Wang X, Lee D, Ku J, Tsao T, Hardoy C, Huang J, Cheng D, Montel-Hagen A, Seet CS, Crooks GM, Larson SM, Sasine JP, Wang X, Pellegrini M, Ribas A, Kohn DB, Witte O, Wang P, Yang L. Development of allogeneic HSC-engineered iNKT cells for off-the-shelf cancer immunotherapy. Cell Rep Med 2021; 2:100449. [PMID: 34841295 PMCID: PMC8607011 DOI: 10.1016/j.xcrm.2021.100449] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 08/12/2021] [Accepted: 10/19/2021] [Indexed: 01/19/2023]
Abstract
Cell-based immunotherapy has become the new-generation cancer medicine, and "off-the-shelf" cell products that can be manufactured at large scale and distributed readily to treat patients are necessary. Invariant natural killer T (iNKT) cells are ideal cell carriers for developing allogeneic cell therapy because they are powerful immune cells targeting cancers without graft-versus-host disease (GvHD) risk. However, healthy donor blood contains extremely low numbers of endogenous iNKT cells. Here, by combining hematopoietic stem cell (HSC) gene engineering and in vitro differentiation, we generate human allogeneic HSC-engineered iNKT (AlloHSC-iNKT) cells at high yield and purity; these cells closely resemble endogenous iNKT cells, effectively target tumor cells using multiple mechanisms, and exhibit high safety and low immunogenicity. These cells can be further engineered with chimeric antigen receptor (CAR) to enhance tumor targeting or/and gene edited to ablate surface human leukocyte antigen (HLA) molecules and further reduce immunogenicity. Collectively, these preclinical studies demonstrate the feasibility and cancer therapy potential of AlloHSC-iNKT cell products and lay a foundation for their translational and clinical development.
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Affiliation(s)
- Yan-Ruide Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yang Zhou
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yu Jeong Kim
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yanni Zhu
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jiaji Yu
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yu-Chen Wang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xianhui Chen
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Zhe Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samuel Zeng
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xi Wang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Derek Lee
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Josh Ku
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tasha Tsao
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Christian Hardoy
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jie Huang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Donghui Cheng
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amélie Montel-Hagen
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Christopher S. Seet
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Gay M. Crooks
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Pediatrics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Sarah M. Larson
- Department of Internal Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Joshua P. Sasine
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Division of Hematology/Oncology, Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xiaoyan Wang
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Antoni Ribas
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Parker Institute for Cancer Immunotherapy, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Donald B. Kohn
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Division of Hematology/Oncology, Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Owen Witte
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Parker Institute for Cancer Immunotherapy, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Pin Wang
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Lili Yang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Hotblack A, Kokalaki EK, Palton MJ, Cheung GWK, Williams IP, Manzoor S, Grothier TI, Piapi A, Fiaccadori V, Wawrzyniecka P, Roddy HA, Agliardi G, Roddie C, Onuoha S, Thomas S, Cordoba S, Pule M. Tunable control of CAR T cell activity through tetracycline mediated disruption of protein-protein interaction. Sci Rep 2021; 11:21902. [PMID: 34754016 PMCID: PMC8578617 DOI: 10.1038/s41598-021-01418-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022] Open
Abstract
Chimeric antigen receptor (CAR) T cells are a promising form of cancer immunotherapy, although they are often associated with severe toxicities. Here, we present a split-CAR design incorporating separate antigen recognition and intracellular signaling domains. These exploit the binding between the tetracycline repressor protein and a small peptide sequence (TIP) to spontaneously assemble as a functional CAR. Addition of the FDA-approved, small molecule antibiotic minocycline, acts as an "off-switch" by displacing the signaling domain and down-tuning CAR T activity. Here we describe the optimization of this split-CAR approach to generate a CAR in which cytotoxicity, cytokine secretion and proliferation can be inhibited in a dose-dependent and reversible manner. Inhibition is effective during on-going CAR T cell activation and inhibits activation and tumor control in vivo. This work shows how optimization of split-CAR structure affects function and adds a novel design allowing easy CAR inhibition through an FDA-approved small molecule.
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Affiliation(s)
- Alastair Hotblack
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | | | - Morgan J Palton
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Gordon Weng-Kit Cheung
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Iwan P Williams
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | | | | | - Alice Piapi
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Valeria Fiaccadori
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Patrycja Wawrzyniecka
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Harriet A Roddy
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Giulia Agliardi
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | - Claire Roddie
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK
| | | | | | | | - Martin Pule
- Department of Haematology, UCL Cancer Institute, University College, 72 Huntley Street, London, WC1E 6DD, UK. .,Autolus Therapeutics, White City, London, UK.
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Guercio M, Manni S, Boffa I, Caruso S, Di Cecca S, Sinibaldi M, Abbaszadeh Z, Camera A, Ciccone R, Polito VA, Ferrandino F, Reddel S, Catanoso ML, Bocceri E, Del Bufalo F, Algeri M, De Angelis B, Quintarelli C, Locatelli F. Inclusion of the Inducible Caspase 9 Suicide Gene in CAR Construct Increases Safety of CAR.CD19 T Cell Therapy in B-Cell Malignancies. Front Immunol 2021; 12:755639. [PMID: 34737753 PMCID: PMC8560965 DOI: 10.3389/fimmu.2021.755639] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/27/2021] [Indexed: 11/14/2022] Open
Abstract
T cells engineered with chimeric antigen receptor (CAR-T cells) are an effective treatment in patients with relapsed/refractory B-cell precursor acute lymphoblastic leukemia or B-cell non-Hodgkin lymphoma. Despite the reported exciting clinical results, the CAR-T cell approach needs efforts to improve the safety profile, limiting the occurrence of adverse events in patients given this treatment. Besides the most common side effects, such as cytokine release syndrome and CAR-T cell–related encephalopathy syndrome, another potential issue involves the inadvertent transduction of leukemia B cells with the CAR construct during the manufacturing process, thus leading to the possibility of a peculiar mechanism of antigen masking and treatment resistance. In this study, we investigated whether the inclusion of the inducible caspase 9 (iC9) suicide gene in the CAR construct design could be an effective safety switch to control malignant CAR+ B cells, ultimately counteracting this serious adverse event. iC9 is a suicide gene able to be activated through binding with an otherwise inert small biomolecule, known as AP1903. The exposure of iC9.CAR.CD19-DAUDI lymphoma and iC9.CAR.CD19-NALM-6 leukemia cells in vitro to 20 nM of AP1903 resulted into the prompt elimination of CAR+ B-leukemia/lymphoma cell lines. The results obtained in the animal model corroborate in vitro data, since iC9.CAR.CD19+ tumor cells were controlled in vivo by the activation of the suicide gene through administration of AP1903. Altogether, our data indicate that the inclusion of the iC9 suicide gene may result in a safe CAR-T cell product, even when manufacturing starts from biological materials characterized by heavy leukemia blast contamination.
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Affiliation(s)
- Marika Guercio
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Simona Manni
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Iolanda Boffa
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Simona Caruso
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Stefano Di Cecca
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Matilde Sinibaldi
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Zeinab Abbaszadeh
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Antonio Camera
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Roselia Ciccone
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Vinicia Assunta Polito
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Francesca Ferrandino
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Sofia Reddel
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Maria Luigia Catanoso
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Emilia Bocceri
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Francesca Del Bufalo
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Mattia Algeri
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Biagio De Angelis
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Concetta Quintarelli
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy.,Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Franco Locatelli
- Department of Oncology-Haematology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy.,Department of Pediatrics, Sapienza University of Rome, Rome, Italy
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Klopp A, Schreiber S, Kosinska AD, Pulé M, Protzer U, Wisskirchen K. Depletion of T cells via Inducible Caspase 9 Increases Safety of Adoptive T-Cell Therapy Against Chronic Hepatitis B. Front Immunol 2021; 12:734246. [PMID: 34691041 PMCID: PMC8527178 DOI: 10.3389/fimmu.2021.734246] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/17/2021] [Indexed: 12/18/2022] Open
Abstract
T-cell therapy with T cells that are re-directed to hepatitis B virus (HBV)-infected cells by virus-specific receptors is a promising therapeutic approach for treatment of chronic hepatitis B and HBV-associated cancer. Due to the high number of target cells, however, side effects such as cytokine release syndrome or hepatotoxicity may limit safety. A safeguard mechanism, which allows depletion of transferred T cells on demand, would thus be an interesting means to increase confidence in this approach. In this study, T cells were generated by retroviral transduction to express either an HBV-specific chimeric antigen receptor (S-CAR) or T-cell receptor (TCR), and in addition either inducible caspase 9 (iC9) or herpes simplex virus thymidine kinase (HSV-TK) as a safety switch. Real-time cytotoxicity assays using HBV-replicating hepatoma cells as targets revealed that activation of both safety switches stopped cytotoxicity of S-CAR- or TCR-transduced T cells within less than one hour. In vivo, induction of iC9 led to a strong and rapid reduction of transferred S-CAR T cells adoptively transferred into AAV-HBV-infected immune incompetent mice. One to six hours after injection of the iC9 dimerizer, over 90% reduction of S-CAR T cells in the blood and the spleen and of over 99% in the liver was observed, thereby limiting hepatotoxicity and stopping cytokine secretion. Simultaneously, however, the antiviral effect of S-CAR T cells was diminished because remaining S-CAR T cells were mostly non-functional and could not be restimulated with HBsAg. A second induction of iC9 was only able to deplete T cells in the liver. In conclusion, T cells co-expressing iC9 and HBV-specific receptors efficiently recognize and kill HBV-replicating cells. Induction of T-cell death via iC9 proved to be an efficient means to deplete transferred T cells in vitro and in vivo containing unwanted hepatotoxicity.
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MESH Headings
- Adoptive Transfer/adverse effects
- Animals
- Caspase 9/biosynthesis
- Caspase 9/genetics
- Cell Death
- Cell Line
- Coculture Techniques
- Cytokines/metabolism
- Cytotoxicity, Immunologic
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Disease Models, Animal
- Enzyme Induction
- Female
- Hepatitis B Antigens/immunology
- Hepatitis B virus/immunology
- Hepatitis B virus/pathogenicity
- Hepatitis B, Chronic/immunology
- Hepatitis B, Chronic/metabolism
- Hepatitis B, Chronic/therapy
- Hepatitis B, Chronic/virology
- Humans
- Interleukin Receptor Common gamma Subunit/genetics
- Interleukin Receptor Common gamma Subunit/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Receptors, Chimeric Antigen/genetics
- Receptors, Chimeric Antigen/metabolism
- Simplexvirus/enzymology
- Simplexvirus/genetics
- T-Lymphocytes/enzymology
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- T-Lymphocytes/transplantation
- Thymidine Kinase/genetics
- Thymidine Kinase/metabolism
- Transduction, Genetic
- Mice
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Affiliation(s)
- Alexandre Klopp
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- Institute of Virology, Helmholtz Zentrum München, Munich, Germany
- German Center for Infection Research (DZIF), Munich Partner Site, Munich, Germany
| | - Sophia Schreiber
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- Institute of Virology, Helmholtz Zentrum München, Munich, Germany
| | - Anna D. Kosinska
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- Institute of Virology, Helmholtz Zentrum München, Munich, Germany
- German Center for Infection Research (DZIF), Munich Partner Site, Munich, Germany
| | - Martin Pulé
- Department of Haematology, Cancer Institute, University College London, London, United Kingdom
| | - Ulrike Protzer
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- Institute of Virology, Helmholtz Zentrum München, Munich, Germany
- German Center for Infection Research (DZIF), Munich Partner Site, Munich, Germany
| | - Karin Wisskirchen
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
- Institute of Virology, Helmholtz Zentrum München, Munich, Germany
- German Center for Infection Research (DZIF), Munich Partner Site, Munich, Germany
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122
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Titratable Pharmacological Regulation of CAR T Cells Using Zinc Finger-Based Transcription Factors. Cancers (Basel) 2021; 13:cancers13194741. [PMID: 34638227 PMCID: PMC8507528 DOI: 10.3390/cancers13194741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 12/03/2022] Open
Abstract
Simple Summary Chimeric antigen receptor (CAR) T cell therapy can be associated with substantial side effects primarily due to intense immune activation following treatment, or target antigen recognition on off-tumor tissue. Consequently, temporal and tunable control of CAR T cell activity is of major importance for the clinical translation of innovative CAR designs. This work demonstrates the transcriptional regulation of an anti-CD20 CAR in primary T cells using a drug inducible zinc finger-based transcription factor. The switch system enables titratable induction of CAR expression and CAR T cell effector function with the clinically relevant inducer drug tamoxifen and its metabolites both in vitro and in vivo, whereby CAR activity is strictly dependent on the presence of the inducer drug. The results obtained can readily be transferred to other CARs for which an improved control of expression is required. Abstract Chimeric antigen receptor (CAR) T cell therapy has emerged as an attractive strategy for cancer immunotherapy. Despite remarkable success for hematological malignancies, excessive activity and poor control of CAR T cells can result in severe adverse events requiring control strategies to improve safety. This work illustrates the feasibility of a zinc finger-based inducible switch system for transcriptional regulation of an anti-CD20 CAR in primary T cells providing small molecule-inducible control over therapeutic functions. We demonstrate time- and dose-dependent induction of anti-CD20 CAR expression and function with metabolites of the clinically-approved drug tamoxifen, and the absence of background CAR activity in the non-induced state. Inducible CAR T cells executed fine-tuned cytolytic activity against target cells both in vitro and in vivo, whereas CAR-related functions were lost upon drug discontinuation. This zinc finger-based transcriptional control system can be extended to other therapeutically important CARs, thus paving the way for safer cellular therapies.
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123
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Li YR, Zhou Y, Kramer A, Yang L. Engineering stem cells for cancer immunotherapy. Trends Cancer 2021; 7:1059-1073. [PMID: 34479851 DOI: 10.1016/j.trecan.2021.08.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 12/27/2022]
Abstract
Engineering stem cells presents an attractive paradigm for cancer immunotherapy. Stem cells engineered to stably express various chimeric antigen receptors (CARs) or T-cell receptors (TCRs) against tumor-associated antigens are showing increasing promise in the treatment of solid tumors and hematologic malignancies. Stem cells engraft for long-term immune cell generation and serve as a sustained source of tumor-specific effector cells to maintain remissions. Furthermore, engineering stem cells provides 'off-the-shelf' cellular products, obviating the need for a personalized and patient-specific product that plagues current autologous cell therapies. Herein, we summarize recent progress of stem cell-engineered cancer therapies, and discuss the utility, impact, opportunities, and challenges of cellular engineering that may facilitate the translational and clinical research.
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Affiliation(s)
- Yan-Ruide Li
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yang Zhou
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Adam Kramer
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Lili Yang
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA.
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124
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Consonni M, Garavaglia C, Grilli A, de Lalla C, Mancino A, Mori L, De Libero G, Montagna D, Casucci M, Serafini M, Bonini C, Häussinger D, Ciceri F, Bernardi M, Mastaglio S, Bicciato S, Dellabona P, Casorati G. Human T cells engineered with a leukemia lipid-specific TCR enables donor-unrestricted recognition of CD1c-expressing leukemia. Nat Commun 2021; 12:4844. [PMID: 34381053 PMCID: PMC8358059 DOI: 10.1038/s41467-021-25223-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 07/29/2021] [Indexed: 12/13/2022] Open
Abstract
Acute leukemia relapsing after chemotherapy plus allogeneic hematopoietic stem cell transplantation can be treated with donor-derived T cells, but this is hampered by the need for donor/recipient MHC-matching and often results in graft-versus-host disease, prompting the search for new donor-unrestricted strategies targeting malignant cells. Leukemia blasts express CD1c antigen-presenting molecules, which are identical in all individuals and expressed only by mature leukocytes, and are recognized by T cell clones specific for the CD1c-restricted leukemia-associated methyl-lysophosphatidic acid (mLPA) lipid antigen. Here, we show that human T cells engineered to express an mLPA-specific TCR, target diverse CD1c-expressing leukemia blasts in vitro and significantly delay the progression of three models of leukemia xenograft in NSG mice, an effect that is boosted by mLPA-cellular immunization. These results highlight a strategy to redirect T cells against leukemia via transfer of a lipid-specific TCR that could be used across MHC barriers with reduced risk of graft-versus-host disease. Leukaemia therapy may benefit from the use of antigens that are less restricted to individual donors. Here the authors engineered T cells with a TCR specific for a CD1c restricted lipid leukaemia antigen and show that they can protect against disease progression in mouse leukaemia xenograft models.
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Affiliation(s)
- Michela Consonni
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Claudio Garavaglia
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Andrea Grilli
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Claudia de Lalla
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Alessandra Mancino
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy
| | - Lucia Mori
- Experimental Immunology, Department of Biomedicine, University of Basel and University Hospital, Basel, Switzerland
| | - Gennaro De Libero
- Experimental Immunology, Department of Biomedicine, University of Basel and University Hospital, Basel, Switzerland
| | - Daniela Montagna
- Foundation IRCCS Policlinico San Matteo; Department of Sciences Clinic-Surgical, Diagnostic and Pediatric, University of Pavia, Pavia, Italy
| | - Monica Casucci
- Innovative Immunotherapies Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marta Serafini
- M. Tettamanti Research Center, University of Milano-Bicocca, Monza, Italy
| | - Chiara Bonini
- Experimental Hematology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Daniel Häussinger
- NMR-Laboratory, Department of Chemistry, University of Basel, Basel, Switzerland
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Bernardi
- Hematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Sara Mastaglio
- Hematology and Bone Marrow Transplant Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvio Bicciato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Paolo Dellabona
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy.
| | - Giulia Casorati
- Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, 20132, Italy.
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125
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He L, Huang Z, Huang K, Chen R, Nguyen NT, Wang R, Cai X, Huang Z, Siwko S, Walker JR, Han G, Zhou Y, Jing J. Optogenetic Control of Non-Apoptotic Cell Death. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2100424. [PMID: 34540558 PMCID: PMC8438606 DOI: 10.1002/advs.202100424] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/08/2021] [Indexed: 05/20/2023]
Abstract
Herein, a set of optogenetic tools (designated LiPOP) that enable photoswitchable necroptosis and pyroptosis in live cells with varying kinetics, is introduced. The LiPOP tools allow reconstruction of the key molecular steps involved in these two non-apoptotic cell death pathways by harnessing the power of light. Further, the use of LiPOPs coupled with upconversion nanoparticles or bioluminescence is demonstrated to achieve wireless optogenetic or chemo-optogenetic killing of cancer cells in multiple mouse tumor models. LiPOPs can trigger necroptotic and pyroptotic cell death in cultured prokaryotic or eukaryotic cells and in living animals, and set the stage for studying the role of non-apoptotic cell death pathways during microbial infection and anti-tumor immunity.
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Affiliation(s)
- Lian He
- Center for Translational Cancer ResearchInstitute of Biosciences and TechnologyTexas A&M UniversityHoustonTX77030USA
| | - Zixian Huang
- Department of Oral and Maxillofacial SurgerySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouGuangdong510120China
| | - Kai Huang
- Department of Biochemistry and Molecular PharmacologyUniversity of Massachusetts Medical SchoolWorcesterMA01605USA
| | - Rui Chen
- Department of Oral and Maxillofacial SurgerySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouGuangdong510120China
| | - Nhung T. Nguyen
- Center for Translational Cancer ResearchInstitute of Biosciences and TechnologyTexas A&M UniversityHoustonTX77030USA
| | - Rui Wang
- Center for Translational Cancer ResearchInstitute of Biosciences and TechnologyTexas A&M UniversityHoustonTX77030USA
| | - Xiaoli Cai
- Center for Epigenetics and Disease PreventionInstitute of Biosciences and TechnologyTexas A&M UniversityHoustonTX77030USA
| | - Zhiquan Huang
- Department of Oral and Maxillofacial SurgerySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouGuangdong510120China
| | - Stefan Siwko
- Center for Translational Cancer ResearchInstitute of Biosciences and TechnologyTexas A&M UniversityHoustonTX77030USA
| | | | - Gang Han
- Department of Biochemistry and Molecular PharmacologyUniversity of Massachusetts Medical SchoolWorcesterMA01605USA
| | - Yubin Zhou
- Center for Translational Cancer ResearchInstitute of Biosciences and TechnologyDepartment of Translational Medical SciencesCollege of MedicineTexas A&M UniversityHoustonTX77030USA
| | - Ji Jing
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital)Institute of Basic Medicine and Cancer (IBMC)Chinese Academy of SciencesHangzhouZhejiang310022China
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126
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Shukla N, Roelle SM, Suzart VG, Bruchez AM, Matreyek KA. Mutants of human ACE2 differentially promote SARS-CoV and SARS-CoV-2 spike mediated infection. PLoS Pathog 2021; 17:e1009715. [PMID: 34270613 PMCID: PMC8284657 DOI: 10.1371/journal.ppat.1009715] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/15/2021] [Indexed: 01/10/2023] Open
Abstract
SARS-CoV and SARS-CoV-2 encode spike proteins that bind human ACE2 on the cell surface to enter target cells during infection. A small fraction of humans encode variants of ACE2, thus altering the biochemical properties at the protein interaction interface. These and other ACE2 coding mutants can reveal how the spike proteins of each virus may differentially engage the ACE2 protein surface during infection. We created an engineered HEK 293T cell line for facile stable transgenic modification, and expressed the major human ACE2 allele or 28 of its missense mutants, 24 of which are possible through single nucleotide changes from the human reference sequence. Infection with SARS-CoV or SARS-CoV-2 spike pseudotyped lentiviruses revealed that high ACE2 cell-surface expression could mask the effects of impaired binding during infection. Drastically reducing ACE2 cell surface expression revealed a range of infection efficiencies across the panel of mutants. Our infection results revealed a non-linear relationship between soluble SARS-CoV-2 RBD binding to ACE2 and pseudovirus infection, supporting a major role for binding avidity during entry. While ACE2 mutants D355N, R357A, and R357T abrogated entry by both SARS-CoV and SARS-CoV-2 spike proteins, the Y41A mutant inhibited SARS-CoV entry much more than SARS-CoV-2, suggesting differential utilization of the ACE2 side-chains within the largely overlapping interaction surfaces utilized by the two CoV spike proteins. These effects correlated well with cytopathic effects observed during SARS-CoV-2 replication in ACE2-mutant cells. The panel of ACE2 mutants also revealed altered ACE2 surface dependencies by the N501Y spike variant, including a near-complete utilization of the K353D ACE2 variant, despite decreased infection mediated by the parental SARS-CoV-2 spike. Our results clarify the relationship between ACE2 abundance, binding, and infection, for various SARS-like coronavirus spike proteins and their mutants, and inform our understanding for how changes to ACE2 sequence may correspond with different susceptibilities to infection.
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Affiliation(s)
- Nidhi Shukla
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Sarah M. Roelle
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Vinicius G. Suzart
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Anna M. Bruchez
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Kenneth A. Matreyek
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
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127
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Park CH. Making Potent CAR T Cells Using Genetic Engineering and Synergistic Agents. Cancers (Basel) 2021; 13:cancers13133236. [PMID: 34209505 PMCID: PMC8269169 DOI: 10.3390/cancers13133236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022] Open
Abstract
Immunotherapies are emerging as powerful weapons for the treatment of malignancies. Chimeric antigen receptor (CAR)-engineered T cells have shown dramatic clinical results in patients with hematological malignancies. However, it is still challenging for CAR T cell therapy to be successful in several types of blood cancer and most solid tumors. Many attempts have been made to enhance the efficacy of CAR T cell therapy by modifying the CAR construct using combination agents, such as compounds, antibodies, or radiation. At present, technology to improve CAR T cell therapy is rapidly developing. In this review, we particularly emphasize the most recent studies utilizing genetic engineering and synergistic agents to improve CAR T cell therapy.
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Affiliation(s)
- Chi Hoon Park
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Daejeon 34114, Korea; ; Tel.: +82-42-860-7416; Fax: +82-42-861-4246
- Medicinal & Pharmaceutical Chemistry, Korea University of Science and Technology, Daejeon 34113, Korea
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128
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Wehrli M, Maus MV. New CARs on and off the road: challenges and new developments in CAR-T cell therapy. Curr Opin Pharmacol 2021; 59:116-126. [PMID: 34198161 DOI: 10.1016/j.coph.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 05/13/2021] [Accepted: 05/17/2021] [Indexed: 11/19/2022]
Abstract
Building on the tremendous success of chimeric antigen receptor T-cell therapy in hematological malignancies, there are efforts under way to overcome the challenges associated with this treatment and expand its application to solid tumors. In this fast-evolving field, new therapeutic options are constantly generated, tested in model systems, and further evaluated in clinical trials. In this review, we provide an overview of recent challenges and developments associated with engineered T cells and chimeric antigen receptor T-cell applications. We report on the most recent progress in hematological malignancies and highlight technical advances for applications in solid tumors.
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Affiliation(s)
- Marc Wehrli
- Cellular Immunotherapy Program, Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Marcela V Maus
- Cellular Immunotherapy Program, Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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Schepers A, Jochems F, Lieftink C, Wang L, Pogacar Z, Leite de Oliveira R, De Conti G, Beijersbergen RL, Bernards R. Identification of Autophagy-Related Genes as Targets for Senescence Induction Using a Customizable CRISPR-Based Suicide Switch Screen. Mol Cancer Res 2021; 19:1613-1621. [PMID: 34158393 DOI: 10.1158/1541-7786.mcr-21-0146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/07/2021] [Accepted: 06/11/2021] [Indexed: 01/10/2023]
Abstract
Pro-senescence therapies are increasingly being considered for the treatment of cancer. Identifying additional targets to induce senescence in cancer cells could further enable such therapies. However, screening for targets whose suppression induces senescence on a genome-wide scale is challenging, as senescent cells become growth arrested, and senescence-associated features can take 1 to 2 weeks to develop. For a screen with a whole-genome CRISPR library, this would result in billions of undesirable proliferating cells by the time the senescent features emerge in the growth arrested cells. Here, we present a suicide switch system that allows genome-wide CRISPR screening in growth-arrested subpopulations by eliminating the proliferating cells during the screen through activation of a suicide switch in proliferating cells. Using this system, we identify in a genome-scale CRISPR screen several autophagy-related proteins as targets for senescence induction. We show that inhibiting macroautophagy with a small molecule ULK1 inhibitor can induce senescence in cancer cell lines of different origin. Finally, we show that combining ULK1 inhibition with the senolytic drug ABT-263 leads to apoptosis in a panel of cancer cell lines. IMPLICATIONS: Our suicide switch approach allows for genome-scale identification of pro-senescence targets, and can be adapted to simplify other screens depending on the nature of the promoter used to drive the switch.
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Affiliation(s)
- Arnout Schepers
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Fleur Jochems
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Cor Lieftink
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Liqin Wang
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Ziva Pogacar
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Rodrigo Leite de Oliveira
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Giulia De Conti
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Roderick L Beijersbergen
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Rene Bernards
- Division of Molecular Carcinogenesis, Oncode Institute, Netherlands Cancer Institute, Amsterdam, the Netherlands.
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Wszoła M, Nitarska D, Cywoniuk P, Gomółka M, Klak M. Stem Cells as a Source of Pancreatic Cells for Production of 3D Bioprinted Bionic Pancreas in the Treatment of Type 1 Diabetes. Cells 2021; 10:1544. [PMID: 34207441 PMCID: PMC8234129 DOI: 10.3390/cells10061544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/14/2022] Open
Abstract
Type 1 diabetes (T1D) is the third most common autoimmune disease which develops due to genetic and environmental risk factors. Often, intensive insulin therapy is insufficient, and patients require a pancreas or pancreatic islets transplant. However, both solutions are associated with many possible complications, including graft rejection. The best approach seems to be a donor-independent T1D treatment strategy based on human stem cells cultured in vitro and differentiated into insulin and glucagon-producing cells (β and α cells, respectively). Both types of cells can then be incorporated into the bio-ink used for 3D printing of the bionic pancreas, which can be transplanted into T1D patients to restore glucose homeostasis. The aim of this review is to summarize current knowledge about stem cells sources and their transformation into key pancreatic cells. Last, but not least, we comment on possible solutions of post-transplant immune response triggered stem cell-derived pancreatic cells and their potential control mechanisms.
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Affiliation(s)
- Michał Wszoła
- Foundation of Research and Science Development, 01-793 Warsaw, Poland; (M.W.); (P.C.); (M.G.)
- Polbionica Ltd., 01-793 Warsaw, Poland;
- Medispace Medical Centre, 01-044 Warsaw, Poland
| | | | - Piotr Cywoniuk
- Foundation of Research and Science Development, 01-793 Warsaw, Poland; (M.W.); (P.C.); (M.G.)
| | - Magdalena Gomółka
- Foundation of Research and Science Development, 01-793 Warsaw, Poland; (M.W.); (P.C.); (M.G.)
| | - Marta Klak
- Foundation of Research and Science Development, 01-793 Warsaw, Poland; (M.W.); (P.C.); (M.G.)
- Polbionica Ltd., 01-793 Warsaw, Poland;
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Abstract
OPINION STATEMENT Chimeric antigen receptor (CAR) T-cell therapy has become the standard of care for children and young adults with relapsed and refractory B-cell acute lymphoblastic leukemia (B-ALL), and it is a highly promising therapy under investigation for adults with relapsed disease. Despite having potentially life-threatening toxicities, such as cytokine release syndrome and immune effector cell-associated neurotoxicity syndrome, the benefits of CAR T-cell therapy far outweigh these risks, particularly as increased experience and improved supportive care measures are mitigating these toxicities. CAR T cells can result in complete remission for significant proportion of patients with relapsed and refractory B-ALL and permit them to proceed to potentially curative allogeneic hematopoietic stem cell transplantation (allo-HSCT). CAR T cells may also be curative by themselves. Herein lie the greatest challenges and questions for clinical investigators, specifically, how are CAR T cells best employed and how do we overcome mechanisms of resistance to them? The primary clinical question is the timing and even the necessity of allo-HSCT. Relative to resistance, we know that target antigen loss, specifically CD19, is a major contributor to resistance. However, current investigations of alternative targets, such CD22, and CAR T cells expressing dual targeting antigen receptors have demonstrated encouraging initial results and provide a high degree of optimism that the efficacy and the broader application of CAR T-cell therapy will gradually increase in B-ALL. That optimism is not as high and the challenges are increased for the application of CAR T cells in T-cell leukemias and acute myeloid leukemia due to the relative lack of suitable leukemia surface targets that are not also expressed on normal hematopoietic progenitors. Despite these significant challenges, considerable research is being conducted into the development of CAR T cells for these diseases utilizing unique technologies, which may be applicable to other diseases.
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132
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Bell M, Gottschalk S. Engineered Cytokine Signaling to Improve CAR T Cell Effector Function. Front Immunol 2021; 12:684642. [PMID: 34177932 PMCID: PMC8220823 DOI: 10.3389/fimmu.2021.684642] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/11/2021] [Indexed: 12/20/2022] Open
Abstract
Adoptive immunotherapy with T cells genetically modified to express chimeric antigen receptors (CARs) is a promising approach to improve outcomes for cancer patients. While CAR T cell therapy is effective for hematological malignancies, there is a need to improve the efficacy of this therapeutic approach for patients with solid tumors and brain tumors. At present, several approaches are being pursued to improve the antitumor activity of CAR T cells including i) targeting multiple antigens, ii) improving T cell expansion/persistence, iii) enhancing homing to tumor sites, and iv) rendering CAR T cells resistant to the immunosuppressive tumor microenvironment (TME). Augmenting signal 3 of T cell activation by transgenic expression of cytokines or engineered cytokine receptors has emerged as a promising strategy since it not only improves CAR T cell expansion/persistence but also their ability to function in the immunosuppressive TME. In this review, we will provide an overview of cytokine biology and highlight genetic approaches that are actively being pursued to augment cytokine signaling in CAR T cells.
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Affiliation(s)
- Matthew Bell
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States.,Graduate School of Biomedical Sciences, 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
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Augmenting anti-CD19 and anti-CD22 CAR T-cell function using PD-1-CD28 checkpoint fusion proteins. Blood Cancer J 2021; 11:108. [PMID: 34088894 PMCID: PMC8178409 DOI: 10.1038/s41408-021-00499-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/05/2021] [Accepted: 05/17/2021] [Indexed: 11/17/2022] Open
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Wada M, Zhang H, Fang L, Feng J, Tse CO, Zhang W, Chen Q, Sha S, Cao Y, Chen KH, Pinz KG, Chen X, Fan XX, Jiang X, Ma Y. Characterization of an Anti-CD5 Directed CAR T-Cell against T-Cell Malignancies. Stem Cell Rev Rep 2021; 16:369-384. [PMID: 32008159 DOI: 10.1007/s12015-019-09937-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
T-cell malignancies often result in poor prognosis and outcome for patients. Immunotherapy has recently emerged as a revolutionary treatment against cancer, and the success seen in CD19 CAR clinical trials may extend to T cell diseases. However, a shared antigen pool coupled with the impact of T-cell depletion incurred by targeting T cell disease remain concepts to be clinically explored with caution. Here we report on the ability of T cells transduced with a CD5CAR to specifically and potently lyse malignant T-cell lines and primary tumors in vitro in addition to significantly improving in vivo control and survival of xenograft models of T-ALL. To extensively explore and investigate the biological properties of a CD5 CAR, we evaluated multiple CD5 CAR constructs and constructed 3 murine models to characterize the properties of CD5 down-regulation, the efficacy and specificity produced by different CD5 CAR construct designs, and the impact of incorporating a CD52 safety switch using CAMPATH to modulate the persistency and function of CAR cells. These data support the potential use of CD5CAR T cells in the treatment of T cell malignancies or refractory disease in clinical settings.
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Affiliation(s)
- Masayuki Wada
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Hongyu Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China.
| | - Liu Fang
- Department of Hematology, Chengdu Military General Hospital, Chengdu, Sichuan, People's Republic of China
| | - Jia Feng
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Charlotte Olivia Tse
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Wenli Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Qi Chen
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Sha Sha
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Yuanzhen Cao
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Kevin H Chen
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Kevin G Pinz
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Xi Chen
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Xing-Xing Fan
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Xun Jiang
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA
| | - Yupo Ma
- iCell Gene Therapeutics LLC Research & Development Division, Long Island High Technology Incubator, 25 Health Sciences Drive, Stony Brook, NY, 11790, USA.
- Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China.
- Department of Pathology, Stony Brook Medicine, Stony Brook, NY, 11794, USA.
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135
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Santamaria-Alza Y, Vasquez G. Are chimeric antigen receptor T cells (CAR-T cells) the future in immunotherapy for autoimmune diseases? Inflamm Res 2021; 70:651-663. [PMID: 34018005 DOI: 10.1007/s00011-021-01470-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 05/04/2021] [Accepted: 05/10/2021] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE CAR-T cell therapy has revolutionized the treatment of oncological diseases, and potential uses in autoimmune diseases have recently been described. The review aims to integrate the available data on treatment with CAR-T cells, emphasizing autoimmune diseases, to determine therapeutic advances and their possible future clinical applicability in autoimmunity. MATERIALS AND METHODS A search was performed in PubMed with the keywords "Chimeric Antigen Receptor" and "CART cell". The documents of interest were selected, and a critical review of the information was carried out. RESULTS In the treatment of autoimmune diseases, in preclinical models, three different cellular strategies have been used, which include Chimeric antigen receptor T cells, Chimeric autoantibody receptor T cells, and Chimeric antigen receptor in regulatory T lymphocytes. All three types of therapy have been effective. The potential adverse effects within them, cytokine release syndrome, cellular toxicity and neurotoxicity must always be kept in mind. CONCLUSIONS Although information in humans is not yet available, preclinical models of CAR-T cells in the treatment of autoimmune diseases show promising results, so that in the future, they may become a useful and effective therapy in the treatment of these pathologies.
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Affiliation(s)
- Yeison Santamaria-Alza
- Rheumatology Section, Facultad de Medicina, Universidad de Antioquia, Street 52 number 61-30 lab 510, Medellín, Colombia.
| | - Gloria Vasquez
- Rheumatology Section, Facultad de Medicina, Universidad de Antioquia, Street 52 number 61-30 lab 510, Medellín, Colombia
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136
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Van Acker HH, Ma S, Scolaro T, Kaech SM, Mazzone M. How metabolism bridles cytotoxic CD8 + T cells through epigenetic modifications. Trends Immunol 2021; 42:401-417. [PMID: 33867272 PMCID: PMC9681987 DOI: 10.1016/j.it.2021.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022]
Abstract
In the direct competition for metabolic resources between cancer cells and tumor-infiltrating CD8+ T cells, the latter are bound to lose out. These effector lymphocytes are therefore rendered exhausted or dysfunctional. Emerging insights into the mechanisms of T cell unresponsiveness in the tumor microenvironment (TME) point towards epigenetic mechanisms as crucial regulatory factors. In this review, we discuss the effects of characteristic components of the TME, i.e. glucose/amino acid dearth with elevated levels of reactive oxygen species (ROS), on DNA methylation and histone modifications in CD8+ T cells. We then take a closer look at the translational potential of epigenetic interventions that aim to improve current immunotherapeutic strategies, including the adoptive transfer of T cell receptor (TCR) or chimeric antigen receptor (CAR) engineered T cells.
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Affiliation(s)
- Heleen H Van Acker
- Laboratory of Tumor Inflammation and Angiogenesis, VIB - KU Leuven, Leuven, Belgium.
| | - Shixin Ma
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Tommaso Scolaro
- Laboratory of Tumor Inflammation and Angiogenesis, VIB - KU Leuven, Leuven, Belgium
| | - Susan M Kaech
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, VIB - KU Leuven, Leuven, Belgium.
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137
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Islam R, Pupovac A, Evtimov V, Boyd N, Shu R, Boyd R, Trounson A. Enhancing a Natural Killer: Modification of NK Cells for Cancer Immunotherapy. Cells 2021; 10:cells10051058. [PMID: 33946954 PMCID: PMC8146003 DOI: 10.3390/cells10051058] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 12/14/2022] Open
Abstract
Natural killer (NK) cells are potent innate immune system effector lymphocytes armed with multiple mechanisms for killing cancer cells. Given the dynamic roles of NK cells in tumor surveillance, they are fast becoming a next-generation tool for adoptive immunotherapy. Many strategies are being employed to increase their number and improve their ability to overcome cancer resistance and the immunosuppressive tumor microenvironment. These include the use of cytokines and synthetic compounds to bolster propagation and killing capacity, targeting immune-function checkpoints, addition of chimeric antigen receptors (CARs) to provide cancer specificity and genetic ablation of inhibitory molecules. The next generation of NK cell products will ideally be readily available as an “off-the-shelf” product and stem cell derived to enable potentially unlimited supply. However, several considerations regarding NK cell source, genetic modification and scale up first need addressing. Understanding NK cell biology and interaction within specific tumor contexts will help identify necessary NK cell modifications and relevant choice of NK cell source. Further enhancement of manufacturing processes will allow for off-the-shelf NK cell immunotherapies to become key components of multifaceted therapeutic strategies for cancer.
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Affiliation(s)
- Rasa Islam
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
| | - Aleta Pupovac
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
| | - Vera Evtimov
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
| | - Nicholas Boyd
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
| | - Runzhe Shu
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
| | - Richard Boyd
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
| | - Alan Trounson
- Cartherics Pty Ltd., Clayton 3168, Australia; (R.I.); (A.P.); (V.E.); (N.B.); (R.S.); (R.B.)
- Department of Obstetrics and Gynaecology, Monash University, Clayton 3168, Australia
- Correspondence:
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138
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Caulier B, Enserink JM, Wälchli S. Pharmacologic Control of CAR T Cells. Int J Mol Sci 2021; 22:ijms22094320. [PMID: 33919245 PMCID: PMC8122276 DOI: 10.3390/ijms22094320] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
Chimeric antigen receptor (CAR) therapy is a promising modality for the treatment of advanced cancers that are otherwise incurable. During the last decade, different centers worldwide have tested the anti-CD19 CAR T cells and shown clinical benefits in the treatment of B cell tumors. However, despite these encouraging results, CAR treatment has also been found to lead to serious side effects and capricious response profiles in patients. In addition, the CD19 CAR success has been difficult to reproduce for other types of malignancy. The appearance of resistant tumor variants, the lack of antigen specificity, and the occurrence of severe adverse effects due to over-stimulation of the therapeutic cells have been identified as the major impediments. This has motivated a growing interest in developing strategies to overcome these hurdles through CAR control. Among them, the combination of small molecules and approved drugs with CAR T cells has been investigated. These have been exploited to induce a synergistic anti-cancer effect but also to control the presence of the CAR T cells or tune the therapeutic activity. In the present review, we discuss opportunistic and rational approaches involving drugs featuring anti-cancer efficacy and CAR-adjustable effect.
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Affiliation(s)
- Benjamin Caulier
- Translational Research Unit, Section for Cellular Therapy, Department of Oncology, Oslo University Hospital, 0379 Oslo, Norway;
- Center for Cancer Cell Reprogramming (CanCell), Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway;
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Montebello, 0379 Oslo, Norway
| | - Jorrit M. Enserink
- Center for Cancer Cell Reprogramming (CanCell), Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, 0379 Oslo, Norway;
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Montebello, 0379 Oslo, Norway
- Section for Biochemistry and Molecular Biology, Faculty of Mathematics and Natural Sciences, University of Oslo, 0379 Oslo, Norway
| | - Sébastien Wälchli
- Translational Research Unit, Section for Cellular Therapy, Department of Oncology, Oslo University Hospital, 0379 Oslo, Norway;
- Correspondence:
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139
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Chimeric Antigen Receptor Design and Efficacy in Ovarian Cancer Treatment. Int J Mol Sci 2021; 22:ijms22073495. [PMID: 33800608 PMCID: PMC8037934 DOI: 10.3390/ijms22073495] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/15/2021] [Accepted: 03/24/2021] [Indexed: 01/06/2023] Open
Abstract
Our increased understanding of tumour biology gained over the last few years has led to the development of targeted molecular therapies, e.g., vascular endothelial growth factor A (VEGF-A) antagonists, poly[ADP-ribose] polymerase 1 (PARP1) inhibitors in hereditary breast and ovarian cancer syndrome (BRCA1 and BRCA2 mutants), increasing survival and improving the quality of life. However, the majority of ovarian cancer (OC) patients still do not have access to targeted molecular therapies that would be capable of controlling their disease, especially resistant or relapsed. Chimeric antigen receptors (CARs) are recombinant receptor constructs located on T lymphocytes or other immune cells that change its specificity and functions. Therefore, in a search for a successful solid tumour therapy using CARs the specific cell surface antigens identification is crucial. Numerous in vitro and in vivo studies, as well as studies on humans, prove that targeting overexpressed molecules, such as mucin 16 (MUC16), annexin 2 (ANXA2), receptor tyrosine-protein kinase erbB-2 (HER2/neu) causes high tumour cells toxicity and decreased tumour burden. CARs are well tolerated, side effects are minimal and they inhibit disease progression. However, as OC is heterogenic in its nature with high mutation diversity and overexpression of different receptors, there is a need to consider an individual approach to treat this type of cancer. In this publication, we would like to present the history and status of therapies involving the CAR T cells in treatment of OC tumours, suggest potential T cell-intrinsic determinants of response and resistance as well as present extrinsic factors impacting the success of this approach.
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140
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Synthetic chemical ligands and cognate antibodies for biorthogonal drug targeting and cell engineering. Adv Drug Deliv Rev 2021; 170:281-293. [PMID: 33486005 DOI: 10.1016/j.addr.2021.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/08/2021] [Indexed: 12/27/2022]
Abstract
A vast range of biomedical applications relies on the specificity of interactions between an antigen and its cognate receptor or antibody. This specificity can be highest when said antigen is a non-natural (synthetic) molecule introduced into a biological setting as a bio-orthogonal ligand. This review aims to present the development of this methodology from the early discovery of haptens a century ago to the recent clinical trials. We discuss such methodologies as antibody recruitment, artificial internalizing receptors and chemically induced dimerization, present the use of chimeric receptors and/or bispecific antibodies to achieve drug targeting and transcytosis, and illustrate how these platforms most impressively found use in the engineering of therapeutic cells such as the chimeric antigen receptor cells. This review aims to be of interest to a broad scientific audience and to spur the development of synthetic artificial ligands for biomedical applications.
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141
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Tan X, Letendre JH, Collins JJ, Wong WW. Synthetic biology in the clinic: engineering vaccines, diagnostics, and therapeutics. Cell 2021; 184:881-898. [PMID: 33571426 PMCID: PMC7897318 DOI: 10.1016/j.cell.2021.01.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/17/2022]
Abstract
Synthetic biology is a design-driven discipline centered on engineering novel biological functions through the discovery, characterization, and repurposing of molecular parts. Several synthetic biological solutions to critical biomedical problems are on the verge of widespread adoption and demonstrate the burgeoning maturation of the field. Here, we highlight applications of synthetic biology in vaccine development, molecular diagnostics, and cell-based therapeutics, emphasizing technologies approved for clinical use or in active clinical trials. We conclude by drawing attention to recent innovations in synthetic biology that are likely to have a significant impact on future applications in biomedicine.
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Affiliation(s)
- Xiao Tan
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Division of Gastroenterology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA; Harvard Medical School, 25 Shattuck St., Boston, MA 02115, USA; Institute for Medical Engineering and Science, MIT, Cambridge, MA 02139, USA
| | - Justin H Letendre
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA; Biological Design Center, Boston University, Boston, MA 02215, USA
| | - James J Collins
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Institute for Medical Engineering and Science, MIT, Cambridge, MA 02139, USA; Department of Biological Engineering, MIT, Cambridge, MA 02139, USA; Synthetic Biology Center, MIT, 77 Massachusetts Ave., Cambridge, MA 02139, USA; Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02139, USA.
| | - Wilson W Wong
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA; Biological Design Center, Boston University, Boston, MA 02215, USA.
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142
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Stone JD, Aggen DH, Schietinger A, Schreiber H, Kranz DM. A sensitivity scale for targeting T cells with chimeric antigen receptors (CARs) and bispecific T-cell Engagers (BiTEs). Oncoimmunology 2021; 1:863-873. [PMID: 23162754 PMCID: PMC3489742 DOI: 10.4161/onci.20592] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Although T cells can mediate potent antitumor responses, immune tolerance mechanisms often result in the deletion or inactivation of T cells that express T-cell receptors (TCRs) against potentially effective target epitopes. Various approaches have been devised to circumvent this problem. In one approach, the gene encoding an antibody against a cancer-associated antigen is linked, in the form of a single-chain variable fragment (scFv), to genes that encode transmembrane and signaling domains. This chimeric antigen receptor (CAR) is then introduced into T cells for adoptive T-cell therapy. In another approach, the anti-cancer scFv is fused to a scFv that binds to the CD3ε subunit of the TCR/CD3 complex. This fusion protein serves as a soluble, injectable product that has recently been termed bispecific T-cell engager (BiTE). Both strategies have now been tested in clinical trials with promising results, but the comparative efficacies are not known. Here, we performed a direct comparison of the in vitro sensitivity of each strategy, using the same anti-cancer scFv fragments, directed against a tumor-specific glycopeptide epitope on the sialomucin-like transmembrane glycoprotein OTS8, which results form a cancer-specific mutation of Cosmc. While both approaches showed specific responses to the epitope as revealed by T cell-mediated cytokine release and target cell lysis, CAR-targeted T cells were more sensitive than BiTE-targeted T cells to low numbers of antigens per cell. The sensitivity scale described here provides a guide to the potential use of these two different approaches.
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Affiliation(s)
- Jennifer D Stone
- Department of Biochemistry; University of Illinois at Urbana-Champaign; Urbana, IL USA
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143
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Ballantyne M, Woodcock M, Doddamani D, Hu T, Taylor L, Hawken RJ, McGrew MJ. Direct allele introgression into pure chicken breeds using Sire Dam Surrogate (SDS) mating. Nat Commun 2021; 12:659. [PMID: 33510156 PMCID: PMC7844028 DOI: 10.1038/s41467-020-20812-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/21/2020] [Indexed: 12/16/2022] Open
Abstract
Poultry is the most abundant livestock species with over 60 billion chickens raised globally per year. The majority of chicken are produced from commercial flocks, however many indigenous chicken breeds play an important role in rural economies as they are well adapted to local environmental and scavenging conditions. The ability to make precise genetic changes in chicken will permit the validation of genetic variants responsible for climate adaptation and disease resilience, and the transfer of beneficial alleles between breeds. Here, we generate a novel inducibly sterile surrogate host chicken. Introducing donor genome edited primordial germ cells into the sterile male and female host embryos produces adult chicken carrying only exogenous germ cells. Subsequent direct mating of the surrogate hosts, Sire Dam Surrogate (SDS) mating, recreates the donor chicken breed carrying the edited allele in a single generation. We demonstrate the introgression and validation of two feather trait alleles, Dominant white and Frizzle into two pure chicken breeds using the SDS surrogate hosts.
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Affiliation(s)
- Maeve Ballantyne
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Mark Woodcock
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Dadakhalandar Doddamani
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Tuanjun Hu
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | - Lorna Taylor
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK
| | | | - Mike J McGrew
- Centre for Tropical Livestock Genetics and Health (CTLGH), Edinburgh, UK.
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Campus, Midlothian, UK.
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144
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Russkamp NF, Myburgh R, Kiefer JD, Neri D, Manz MG. Anti-CD117 immunotherapy to eliminate hematopoietic and leukemia stem cells. Exp Hematol 2021; 95:31-45. [PMID: 33484750 DOI: 10.1016/j.exphem.2021.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/11/2022]
Abstract
Precise replacement of diseased or dysfunctional organs is the goal of regenerative medicine and has appeared to be a distant goal for a long time. In the field of hematopoietic stem cell transplantation, this goal is now becoming tangible as gene-editing technologies and novel conditioning agents are entering the clinical arena. Targeted immunologic depletion of hematopoietic stem cells (HSCs), which are at the very root of the hematopoietic system, will enable more selective and potentially more effective hematopoietic stem cell transplantation in patients with hematological diseases. In contrast to current conditioning regimes based on ionizing radiation and chemotherapy, immunologic conditioning will spare mature hematopoietic cells and cause substantially less inflammation and unspecific collateral damage to other organs. Biological agents that target the stem cell antigen CD117 are the frontrunners for this purpose and have exhibited preclinical activity in depletion of healthy HSCs. The value of anti-CD117 antibodies as conditioning agents is currently being evaluated in early clinical trials. Whereas mild, antibody-based immunologic conditioning concepts might be appropriate for benign hematological disorders in which incomplete replacement of diseased cells is sufficient, higher efficacy will be required for treatment and elimination of hematologic stem cell malignancies such as acute myeloid leukemia and myelodysplastic syndrome. Antibody-drug conjugates, bispecific T-cell engaging and activating antibodies (TEAs), or chimeric antigen receptor (CAR) T cells might offer increased efficacy compared with naked antibodies and yet higher tolerability and safety compared with current genotoxic conditioning approaches. Here, we summarize the current state regarding immunologic conditioning concepts for the treatment of HSC disorders and outline potential future developments.
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Affiliation(s)
- Norman F Russkamp
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Renier Myburgh
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Jonathan D Kiefer
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland; Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Markus G Manz
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland.
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145
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Velardi E, Clave E, Arruda LCM, Benini F, Locatelli F, Toubert A. The role of the thymus in allogeneic bone marrow transplantation and the recovery of the peripheral T-cell compartment. Semin Immunopathol 2021; 43:101-117. [PMID: 33416938 DOI: 10.1007/s00281-020-00828-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/14/2020] [Indexed: 12/11/2022]
Abstract
As the thymus represents the primary site of T-cell development, optimal thymic function is of paramount importance for the successful reconstitution of the adaptive immunity after allogeneic hematopoietic stem cell transplantation. Thymus involutes as part of the aging process and several factors, including previous chemotherapy treatments, conditioning regimen used in preparation to the allograft, occurrence of graft-versus-host disease, and steroid therapy that impair the integrity of the thymus, thus affecting its role in supporting T-cell neogenesis. Although the pathways governing its regeneration are still poorly understood, the thymus has a remarkable capacity to recover its function after damage. Measurement of both recent thymic emigrants and T-cell receptor excision circles is valuable tools to assess thymic output and gain insights on its function. In this review, we will extensively discuss available data on factors regulating thymic function after allogeneic hematopoietic stem cell transplantation, as well as the strategies and therapeutic approaches under investigation to promote thymic reconstitution and accelerate immune recovery in transplanted patients, including the use of cytokines, sex-steroid ablation, precursor T-cells, and thymus bioengineering. Although none of them is routinely used in the clinic, these approaches have the potential to enhance thymic function and immune recovery, not only in patients given an allograft but also in other conditions characterized by immune deficiencies related to a defective function of the thymus.
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Affiliation(s)
- Enrico Velardi
- Department of Pediatric Hematology and Oncology, Bambino Gesù Children's Hospital, IRCCS, 00146, Rome, Italy.
| | - Emmanuel Clave
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010, Paris, France
| | - Lucas C M Arruda
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Francesca Benini
- Department of Maternal and Child Health, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology and Oncology, Bambino Gesù Children's Hospital, IRCCS, 00146, Rome, Italy.,Department of Maternal and Child Health, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Antoine Toubert
- Université de Paris, Institut de Recherche Saint Louis, EMiLy, Inserm U1160, F-75010, Paris, France.,Laboratoire d'Immunologie et d'Histocompatibilité, AP-HP, Hopital Saint-Louis, F-75010, Paris, France
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146
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Benmebarek MR, Cadilha BL, Herrmann M, Lesch S, Schmitt S, Stoiber S, Darwich A, Augsberger C, Brauchle B, Rohrbacher L, Oner A, Seifert M, Schwerdtfeger M, Gottschlich A, Rataj F, Fenn NC, Klein C, Subklewe M, Endres S, Hopfner KP, Kobold S. A modular and controllable T cell therapy platform for acute myeloid leukemia. Leukemia 2021; 35:2243-2257. [PMID: 33414484 PMCID: PMC7789085 DOI: 10.1038/s41375-020-01109-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/09/2020] [Accepted: 12/01/2020] [Indexed: 01/29/2023]
Abstract
Targeted T cell therapy is highly effective in disease settings where tumor antigens are uniformly expressed on malignant cells and where off-tumor on-target-associated toxicity is manageable. Although acute myeloid leukemia (AML) has in principle been shown to be a T cell-sensitive disease by the graft-versus-leukemia activity of allogeneic stem cell transplantation, T cell therapy has so far failed in this setting. This is largely due to the lack of target structures both sufficiently selective and uniformly expressed on AML, causing unacceptable myeloid cell toxicity. To address this, we developed a modular and controllable MHC-unrestricted adoptive T cell therapy platform tailored to AML. This platform combines synthetic agonistic receptor (SAR) -transduced T cells with AML-targeting tandem single chain variable fragment (scFv) constructs. Construct exchange allows SAR T cells to be redirected toward alternative targets, a process enabled by the short half-life and controllability of these antibody fragments. Combining SAR-transduced T cells with the scFv constructs resulted in selective killing of CD33+ and CD123+ AML cell lines, as well as of patient-derived AML blasts. Durable responses and persistence of SAR-transduced T cells could also be demonstrated in AML xenograft models. Together these results warrant further translation of this novel platform for AML treatment.
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Affiliation(s)
- Mohamed-Reda Benmebarek
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Bruno L. Cadilha
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Monika Herrmann
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany
| | - Stefanie Lesch
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Saskia Schmitt
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany
| | - Stefan Stoiber
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Abbass Darwich
- grid.417728.f0000 0004 1756 8807Mucosal Immunology and Microbiota Lab, Humanitas Clinical and Research Center, Milan, Italy
| | - Christian Augsberger
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany
| | - Bettina Brauchle
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany ,grid.5252.00000 0004 1936 973XLaboratory for Translational Cancer Immunology, Gene Center, LMU Munich, Munich, Germany
| | - Lisa Rohrbacher
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany ,grid.5252.00000 0004 1936 973XLaboratory for Translational Cancer Immunology, Gene Center, LMU Munich, Munich, Germany
| | - Arman Oner
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Matthias Seifert
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Melanie Schwerdtfeger
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Adrian Gottschlich
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Felicitas Rataj
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany
| | - Nadja C. Fenn
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany
| | - Christian Klein
- grid.417570.00000 0004 0374 1269Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Marion Subklewe
- grid.5252.00000 0004 1936 973XDepartment of Medicine III, Klinikum der Universität München, LMU, Munich, Germany ,grid.5252.00000 0004 1936 973XLaboratory for Translational Cancer Immunology, Gene Center, LMU Munich, Munich, Germany ,German Center for Translational Cancer Research (DKTK), Partner Site Munich, Munich, Germany
| | - Stefan Endres
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany ,German Center for Translational Cancer Research (DKTK), Partner Site Munich, Munich, Germany ,grid.4567.00000 0004 0483 2525Einheit für Klinische Pharmakologie (EKLiP), Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Neuherberg, Germany
| | | | - Sebastian Kobold
- grid.5252.00000 0004 1936 973XCenter of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU, Munich, Germany ,German Center for Translational Cancer Research (DKTK), Partner Site Munich, Munich, Germany ,grid.4567.00000 0004 0483 2525Einheit für Klinische Pharmakologie (EKLiP), Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU), Neuherberg, Germany
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147
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Exley AR, McBlane J. Regulating innovation in the early development of cell therapies. IMMUNOTHERAPY ADVANCES 2020. [DOI: 10.1093/immadv/ltaa011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Summary
Clinical need for paradigm shifts in efficacy and safety is driving the rapid and wide-ranging innovation in cell therapies for cancer beyond existing regulatory frameworks. Critical issues emerging during clinical trials frequently reflect unresolved elements of the regulation of innovation conundrum from earlier stages of development. We address this challenge using a global regulators’ perspective on the preclinical development of cell therapies, as a navigational aid to intended commercial use which maximises the clinical relevance of developmental data. We examine the implications of tumour targeting based on B cell, natural killer cell, conventional and unconventional T cell receptor domains; multiplex approaches; genetic manipulation strategies; and autologous versus allogeneic cell sources. We propose that detailed characterisation of both the cell source and final product is critical to optimising manufacture of individualised autologous or off the shelf allogeneic cell therapies, enabling product consistency to underpin extrapolation of clinical trial data to the expected commercial use. We highlight preclinical approaches to characterising target antigens including the Human Cell Atlas initiative, multi-dimensional cell culture, and safety testing against activated, proliferating or stressed control cells. Practical solutions are provided for preclinical toxicity studies when cell therapies target uniquely human tumour antigens, including illustrative mitigation measures for potential toxicity likely to support timely approval of first-in-human clinical trials. We recommend addressing the regulation of innovation conundrum through serial engagement between innovators and regulators early in the development of cell therapies for cancer, accelerating patient access while safeguarding against unacceptable toxicities.
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Affiliation(s)
- Andrew R Exley
- Biologicals and Biotechnology Unit, Licensing Division, Medicines and Healthcare products Regulatory Agency, London, UK
| | - James McBlane
- Biologicals and Biotechnology Unit, Licensing Division, Medicines and Healthcare products Regulatory Agency, London, UK
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148
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Carbonneau S, Sharma S, Peng L, Rajan V, Hainzl D, Henault M, Yang C, Hale J, Shulok J, Tallarico J, Porter J, Brogdon JL, Dranoff G, Bradner JE, Hild M, Guimaraes CP. An IMiD-inducible degron provides reversible regulation for chimeric antigen receptor expression and activity. Cell Chem Biol 2020; 28:802-812.e6. [PMID: 33333026 DOI: 10.1016/j.chembiol.2020.11.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/02/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022]
Abstract
The recent development of successful CAR (chimeric antigen receptor) T cell therapies has been accompanied by a need to better control potentially fatal toxicities that can arise from adverse immune reactions. Here we present a ligand-controlled CAR system, based on the IKZF3 ZF2 β-hairpin IMiD-inducible degron, which allows for the reversible control of expression levels of type I membrane proteins, including CARs. Testing this system in an established mouse xenotransplantation model for acute lymphoblastic leukemia, we validate the ability of the CAR19-degron to target and kill CD19-positive cells displaying complete control/clearance of the tumor. We also demonstrate that the activity of CAR19-degron can be regulated in vivo when dosing a US Food and Drug Administration-approved drug, lenalidomide.
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Affiliation(s)
- Seth Carbonneau
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Sujata Sharma
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Liaomin Peng
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Vaisakh Rajan
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Dominik Hainzl
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Martin Henault
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Chian Yang
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Jacob Hale
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Janine Shulok
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - John Tallarico
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Jeff Porter
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | - Glenn Dranoff
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - James E Bradner
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Marc Hild
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA.
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149
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Precision Tools in Immuno-Oncology: Synthetic Gene Circuits for Cancer Immunotherapy. Vaccines (Basel) 2020; 8:vaccines8040732. [PMID: 33287392 PMCID: PMC7761833 DOI: 10.3390/vaccines8040732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 12/16/2022] Open
Abstract
Engineered mammalian cells for medical purposes are becoming a clinically relevant reality thanks to advances in synthetic biology that allow enhanced reliability and safety of cell-based therapies. However, their application is still hampered by challenges including time-consuming design-and-test cycle iterations and costs. For example, in the field of cancer immunotherapy, CAR-T cells targeting CD19 have already been clinically approved to treat several types of leukemia, but their use in the context of solid tumors is still quite inefficient, with additional issues related to the adequate quality control for clinical use. These limitations can be overtaken by innovative bioengineering approaches currently in development. Here we present an overview of recent synthetic biology strategies for mammalian cell therapies, with a special focus on the genetic engineering improvements on CAR-T cells, discussing scenarios for the next generation of genetic circuits for cancer immunotherapy.
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150
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Chimeric antigen receptor T cell therapies for acute myeloid leukemia. Front Med 2020; 14:701-710. [PMID: 33263835 DOI: 10.1007/s11684-020-0763-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 02/16/2020] [Indexed: 12/12/2022]
Abstract
Chimeric antigen receptor T cell (CAR T) therapies have achieved unprecedented efficacy in B-cell tumors, prompting scientists and doctors to exploit this strategy to treat other tumor types. Acute myeloid leukemia (AML) is a group of heterogeneous myeloid malignancies. Relapse remains the main cause of treatment failure, especially for patients with intermediate or high risk stratification. Allogeneic hematopoietic stem cell transplantation could be an effective therapy because of the graft-versus-leukemia effect, which unfortunately puts the patient at risk of serious complications, such as graft-versus-host disease. Although the identification of an ideal target antigen for AML is challenging, CAR T therapy remains a highly promising strategy for AML patients, particularly for those who are ineligible to receive a transplantation or have positive minimal residual disease. In this review, we focus on the most recent and promising advances in CAR T therapies for AML.
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